Function bezier2::cubic

pub fn cubic<'a, 'b, T, F>(
    out: &'a mut [T; 2], 
    p0: &'b [T; 2], 
    p1: &'b [T; 2], 
    p2: &'b [T; 2], 
    t: F
) -> &'a mut [T; 2] where
    T: Copy + Num + Cast<F>,
    F: Copy + Num + Cast<T>,